<!-- This comment will put IE 6, 7 and 8 in quirks mode -->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<title>include/shark/LinAlg/LRUCache.h Source File</title>
<script type="text/javaScript" src="search/search.js"></script>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
<script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3.0.1/es5/tex-mml-chtml.js"></script>
<script src="../../mlstyle.js"></script>
<link href="../css/besser.css" rel="stylesheet" type="text/css"/>
</head>
<!-- pretty cool: each body gets an id tag which is the basename of the web page  -->
<!--              and allows for page-specific CSS. this is client-side scripted, -->
<!--              so the id will not yet show up in the served source code -->
<script type="text/javascript">
    jQuery(document).ready(function () {
        var url = jQuery(location).attr('href');
        var pname = url.substr(url.lastIndexOf("/")+1, url.lastIndexOf(".")-url.lastIndexOf("/")-1);
        jQuery('#this_url').html('<strong>' + pname + '</strong>');
        jQuery('body').attr('id', pname);
    });
</script>
<body>
    <div id="shark_old">
        <div id="wrap">
            <div id="header">
                <div id="site-name"><a href="../../sphinx_pages/build/html/index.html">Shark machine learning library</a></div>
                <ul id="nav">
                    <li >
                        <a href="../../sphinx_pages/build/html/rest_sources/installation.html">Installation</a>
                    </li>
		    <li >
                        <a href="../../sphinx_pages/build/html/rest_sources/tutorials/tutorials.html">Tutorials</a>
                    </li>
		    <li >
                        <a href="../../sphinx_pages/build/html/rest_sources/benchmark.html">Benchmarks</a>
                    </li>
                    <li class="active">
                        <a href="classes.html">Documentation</a>
                        <ul>
                            <li class="first"></li>
                            <li><a href="../../sphinx_pages/build/html/rest_sources/quickref/quickref.html">Quick references</a></li>
                            <li><a href="classes.html">Class list</a></li>
                            <li class="last"><a href="group__shark__globals.html">Global functions</a></li>
                        </ul>
                    </li>
                </ul>
            </div>
        </div>
    </div>
<div id="doxywrapper">
<!--
    <div id="global_doxytitle">Doxygen<br>Documentation:</div>
-->
    <div id="navrow_wrapper">
<!-- Generated by Doxygen 1.9.8 -->
<div id="nav-path" class="navpath">
  <ul>
<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_9d0c4981f10d03078bcfd5c74fe41ce8.html">shark</a></li><li class="navelem"><a class="el" href="dir_dd3f668d951792dcec83cb1f625ad30c.html">LinAlg</a></li>  </ul>
</div>
</div><!-- top -->
<div class="header">
  <div class="headertitle"><div class="title">LRUCache.h</div></div>
</div><!--header-->
<div class="contents">
<a href="_l_r_u_cache_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">//===========================================================================</span><span class="comment"></span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment">/*!</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment"> * </span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment"> *</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment"> * \brief       Cache implementing an Least-Recently-Used Strategy</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment"> * </span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment"> * </span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="comment"> *</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment"> * \author      O. Krause</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="comment"> * \date        2013</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="comment"> *</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="comment"> *</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment"> * \par Copyright 1995-2017 Shark Development Team</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment"> * </span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment"> * &lt;BR&gt;&lt;HR&gt;</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment"> * This file is part of Shark.</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment"> * &lt;https://shark-ml.github.io/Shark/&gt;</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="comment"> * </span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="comment"> * Shark is free software: you can redistribute it and/or modify</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="comment"> * it under the terms of the GNU Lesser General Public License as published </span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="comment"> * by the Free Software Foundation, either version 3 of the License, or</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="comment"> * (at your option) any later version.</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="comment"> * </span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span><span class="comment"> * Shark is distributed in the hope that it will be useful,</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span><span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span><span class="comment"> * GNU Lesser General Public License for more details.</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="comment"> * </span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span><span class="comment"> * You should have received a copy of the GNU Lesser General Public License</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="comment"> * along with Shark.  If not, see &lt;http://www.gnu.org/licenses/&gt;.</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span><span class="comment"> *</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span><span class="comment"> */</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span><span class="comment">//===========================================================================</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span><span class="preprocessor">#ifndef SHARK_LINALG_LRUCACHE_H</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span><span class="preprocessor">#define SHARK_LINALG_LRUCACHE_H</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span> </div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span><span class="preprocessor">#include &lt;<a class="code" href="_exception_8h.html">shark/Core/Exception.h</a>&gt;</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span><span class="preprocessor">#include &lt;boost/intrusive/list.hpp&gt;</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span><span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span> </div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span> </div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceshark.html" title="AbstractMultiObjectiveOptimizer.">shark</a>{</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span><span class="comment"></span> </div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><span class="comment">/// \brief Implements an LRU-Caching Strategy for arbitrary Cache-Lines.</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span><span class="comment">///</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span><span class="comment">/// Low Level Cache which stores cache lines, arrays of T[size] where size is a variable length for every cache line. </span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span><span class="comment">/// Every line is associated with some index 0&lt;i &lt; max. It is assumed that not all cache lines can be </span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span><span class="comment">/// stored at the same time, but  only a (small) subset. The size of the cache is bounded by the summed length of all</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span><span class="comment">/// cache lines, that means that when the lines are very short, the cache can store more lines.</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span><span class="comment">/// If the cache is full and another line needs to be accessed, or an existing line needs to be resized,</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span><span class="comment">/// cache lines need to be freed. This cache uses an Least-Recently-Used strategy. The cache maintains</span></div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span><span class="comment">/// a list. Everytime a cacheline is accessed, it moves to the front of the list. When a line is freed</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span><span class="comment">/// the end of the list is chosen.</span></div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span><span class="comment"></span><span class="keyword">template</span>&lt;<span class="keyword">class</span> T&gt;</div>
<div class="foldopen" id="foldopen00055" data-start="{" data-end="};">
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"><a class="line" href="classshark_1_1_l_r_u_cache.html">   55</a></span><span class="keyword">class </span><a class="code hl_class" href="classshark_1_1_l_r_u_cache.html" title="Implements an LRU-Caching Strategy for arbitrary Cache-Lines.">LRUCache</a>{<span class="comment"></span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span><span class="comment">    /// cache data held for every example</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span><span class="comment"></span>    <span class="keyword">struct </span>CacheEntry:  <span class="keyword">public</span> boost::intrusive::list_base_hook&lt;&gt;</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span>    {</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span>        T* data; <span class="comment">///&lt; pointer to the beginning of the matrix row</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span>        std::size_t length; <span class="comment">///&lt; length of the currently calculated strip of variables</span></div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span>        CacheEntry():length(0){}</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span>    };</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span><span class="keyword">public</span>:<span class="comment"></span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span><span class="comment">    /// \brief Creates a cache with a given maximum index &quot;lines&quot; and a given maximum cache size.</span></div>
<div class="foldopen" id="foldopen00065" data-start="{" data-end="}">
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"><a class="line" href="classshark_1_1_l_r_u_cache.html#ad2dd07a0ed9d6628dd54328e9131352b">   65</a></span><span class="comment"></span>    <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ad2dd07a0ed9d6628dd54328e9131352b" title="Creates a cache with a given maximum index &quot;lines&quot; and a given maximum cache size.">LRUCache</a>(std::size_t lines, std::size_t cachesize = 0x4000000)</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>    : m_cacheEntry(lines)</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>    , m_cacheSize( 0 )</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>    , m_maxSize( cachesize ){}</div>
</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span>    </div>
<div class="foldopen" id="foldopen00070" data-start="{" data-end="}">
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"><a class="line" href="classshark_1_1_l_r_u_cache.html#a353c4c3ab265ca17f90686466fc99d1e">   70</a></span>    <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#a353c4c3ab265ca17f90686466fc99d1e">~LRUCache</a>(){</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>        <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#afd6ed6c3442f200616f4c7d4cee32144" title="empty cache">clear</a>();</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span>    }</div>
</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span>    <span class="comment"></span></div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span><span class="comment">    ///\brief Returns true if the line is cached.</span></div>
<div class="foldopen" id="foldopen00075" data-start="{" data-end="}">
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"><a class="line" href="classshark_1_1_l_r_u_cache.html#aa7fe0128f8b11bfab3e6e89d0544b4dd">   75</a></span><span class="comment"></span>    <span class="keywordtype">bool</span> <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#aa7fe0128f8b11bfab3e6e89d0544b4dd" title="Returns true if the line is cached.">isCached</a>(std::size_t i)<span class="keyword">const</span>{</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span>        <span class="keywordflow">return</span> m_cacheEntry[i].length != 0;</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span>    }<span class="comment"></span></div>
</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span><span class="comment">    ///\brief Returns the size of the cached line.</span></div>
<div class="foldopen" id="foldopen00079" data-start="{" data-end="}">
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"><a class="line" href="classshark_1_1_l_r_u_cache.html#ad8cae64a351bdef5e03976d1e5176072">   79</a></span><span class="comment"></span>    std::size_t <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ad8cae64a351bdef5e03976d1e5176072" title="Returns the size of the cached line.">lineLength</a>(std::size_t i)<span class="keyword">const</span>{</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span>        <span class="keywordflow">return</span> m_cacheEntry[i].length;</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span>    }</div>
</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span>    <span class="comment"></span></div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span><span class="comment">    /// \brief Returns the number of lines currently allocated.</span></div>
<div class="foldopen" id="foldopen00084" data-start="{" data-end="}">
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"><a class="line" href="classshark_1_1_l_r_u_cache.html#a02ecc15b8471e026cfe4a5f93bf66b49">   84</a></span><span class="comment"></span>    std::size_t <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#a02ecc15b8471e026cfe4a5f93bf66b49" title="Returns the number of lines currently allocated.">cachedLines</a>()<span class="keyword">const</span>{</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span>        <span class="keywordflow">return</span> m_lruList.size();</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span>    }</div>
</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span>    <span class="comment"></span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="comment">    ///\brief Returns the line with index i with the correct size.</span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span><span class="comment">    ///</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="comment">    ///If the line is not cached, it is created with the exact size. if it is cached</span></div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span><span class="comment">    ///and is at least as big, it is returned unchanged. otherwise it is</span></div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span><span class="comment">    ///resized to the proper size and the old values are kept.</span></div>
<div class="foldopen" id="foldopen00093" data-start="{" data-end="}">
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"><a class="line" href="classshark_1_1_l_r_u_cache.html#a1d1d221a9216657a86b799233d80c1af">   93</a></span><span class="comment"></span>    T* <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#a1d1d221a9216657a86b799233d80c1af" title="Returns the line with index i with the correct size.">getCacheLine</a>(std::size_t i, std::size_t <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>){</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span>        CacheEntry&amp; entry = m_cacheEntry[i];</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span>        <span class="comment">//if the is cached, we push it to the front</span></div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span>        <span class="keywordflow">if</span>(!<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#aa7fe0128f8b11bfab3e6e89d0544b4dd" title="Returns true if the line is cached.">isCached</a>(i))</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span>            cacheCreateRow(entry,<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>);</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span>        <span class="keywordflow">else</span>{</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span>            <span class="keywordflow">if</span>(entry.length &gt;= <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>)</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span>                cacheRedeclareNewest(entry);</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span>            <span class="keywordflow">else</span></div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span>                <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#a17d6a25d7e772893c10ec0cdd3f8670f" title="Resizes a line while retaining the data stored inside it.">resizeLine</a>(entry,<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>);</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span>        }</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span>        <span class="keywordflow">return</span> entry.data;</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span>    }</div>
</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span>    <span class="comment"></span></div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span><span class="comment">    ///\brief Just returns the pointer to the i-th line without affcting cache at all.</span></div>
<div class="foldopen" id="foldopen00108" data-start="{" data-end="}">
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"><a class="line" href="classshark_1_1_l_r_u_cache.html#a2848536687dec954b5ec1cea247866eb">  108</a></span><span class="comment"></span>    T* <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#a2848536687dec954b5ec1cea247866eb" title="Just returns the pointer to the i-th line without affcting cache at all.">getLinePointer</a>(std::size_t i){</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span>        <span class="keywordflow">return</span> m_cacheEntry[i].data;</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span>    }</div>
</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span>    <span class="comment"></span></div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="comment">    ///\brief Just returns the pointer to the i-th line without affcting cache at all.</span></div>
<div class="foldopen" id="foldopen00113" data-start="{" data-end="}">
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"><a class="line" href="classshark_1_1_l_r_u_cache.html#aad55c9f2d4c55fd38e494ce98907851c">  113</a></span><span class="comment"></span>    T <span class="keyword">const</span>* <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#aad55c9f2d4c55fd38e494ce98907851c" title="Just returns the pointer to the i-th line without affcting cache at all.">getLinePointer</a>(std::size_t i)<span class="keyword">const</span>{</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span>        <span class="keywordflow">return</span> m_cacheEntry[i].data;</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span>    }</div>
</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span>    <span class="comment"></span></div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span><span class="comment">    /// \brief Resizes a line while retaining the data stored inside it.</span></div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span><span class="comment">    ///</span></div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span><span class="comment">    /// if the new size is smaller than the old, only the first size entries are saved.</span></div>
<div class="foldopen" id="foldopen00120" data-start="{" data-end="}">
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"><a class="line" href="classshark_1_1_l_r_u_cache.html#a17d6a25d7e772893c10ec0cdd3f8670f">  120</a></span><span class="comment"></span>    <span class="keywordtype">void</span> <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#a17d6a25d7e772893c10ec0cdd3f8670f" title="Resizes a line while retaining the data stored inside it.">resizeLine</a>(std::size_t i ,std::size_t <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>){</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span>        <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#a17d6a25d7e772893c10ec0cdd3f8670f" title="Resizes a line while retaining the data stored inside it.">resizeLine</a>(m_cacheEntry[i],<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>);</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span>    }</div>
</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span>    <span class="comment"></span></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span><span class="comment">    ///\brief Marks cache line i for deletion, that is the next time memory is needed, this line will be freed.</span></div>
<div class="foldopen" id="foldopen00125" data-start="{" data-end="}">
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"><a class="line" href="classshark_1_1_l_r_u_cache.html#a738129f952a28aa14f35c952079d0a7e">  125</a></span><span class="comment"></span>    <span class="keywordtype">void</span> <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#a738129f952a28aa14f35c952079d0a7e" title="Marks cache line i for deletion, that is the next time memory is needed, this line will be freed.">markLineForDeletion</a>(std::size_t i){</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span>        <span class="keywordflow">if</span>(!<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#aa7fe0128f8b11bfab3e6e89d0544b4dd" title="Returns true if the line is cached.">isCached</a>(i)) <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span>        CacheEntry&amp; block = m_cacheEntry[i];</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span>        m_lruList.erase(m_lruList.iterator_to(block));</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span>        m_lruList.push_back(block);</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span>    }</div>
</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span>    <span class="comment"></span></div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span><span class="comment">    ///\brief swaps index of lines i and j.</span></div>
<div class="foldopen" id="foldopen00133" data-start="{" data-end="}">
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"><a class="line" href="classshark_1_1_l_r_u_cache.html#af995657d3a4cd3c7c85550e0fb056985">  133</a></span><span class="comment"></span>    <span class="keywordtype">void</span> <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#af995657d3a4cd3c7c85550e0fb056985" title="swaps index of lines i and j.">swapLineIndices</a>(std::size_t i, std::size_t j){</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span>        <span class="keyword">typedef</span> <span class="keyword">typename</span> boost::intrusive::list&lt;CacheEntry&gt;::iterator Iterator;</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span>        <span class="comment">//SHARK_ASSERT( i &lt;= j );</span></div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span>        <span class="comment">//nothing to do if lines are not cached or indizes are the same</span></div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span>        <span class="keywordflow">if</span>( i == j || (!<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#aa7fe0128f8b11bfab3e6e89d0544b4dd" title="Returns true if the line is cached.">isCached</a>(i) &amp;&amp; !<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#aa7fe0128f8b11bfab3e6e89d0544b4dd" title="Returns true if the line is cached.">isCached</a>(j)))  <span class="keywordflow">return</span>; </div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span>        </div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span>        CacheEntry&amp; cachei = m_cacheEntry[i];</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span>        CacheEntry&amp; cachej = m_cacheEntry[j];</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span>        </div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span>        <span class="comment">//correct list to point to the exchanged values</span></div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span>        <span class="keywordflow">if</span>(<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#aa7fe0128f8b11bfab3e6e89d0544b4dd" title="Returns true if the line is cached.">isCached</a>(i) &amp;&amp; !<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#aa7fe0128f8b11bfab3e6e89d0544b4dd" title="Returns true if the line is cached.">isCached</a>(j)){</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span>            Iterator pos = m_lruList.iterator_to( cachei );</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span>            m_lruList.insert(pos,cachej);</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span>            m_lruList.erase(pos);</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span>        }<span class="keywordflow">else</span> <span class="keywordflow">if</span>(!<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#aa7fe0128f8b11bfab3e6e89d0544b4dd" title="Returns true if the line is cached.">isCached</a>(i) &amp;&amp; <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#aa7fe0128f8b11bfab3e6e89d0544b4dd" title="Returns true if the line is cached.">isCached</a>(j)){</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span>            Iterator pos = m_lruList.iterator_to( cachej );</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span>            m_lruList.insert(pos,cachei);</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span>            m_lruList.erase(pos);</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span>        }<span class="keywordflow">else</span> <span class="keywordflow">if</span>(<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#aa7fe0128f8b11bfab3e6e89d0544b4dd" title="Returns true if the line is cached.">isCached</a>(i) &amp;&amp; <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#aa7fe0128f8b11bfab3e6e89d0544b4dd" title="Returns true if the line is cached.">isCached</a>(j)){</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span>            Iterator posi = m_lruList.iterator_to( cachei );</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span>            Iterator posj = m_lruList.iterator_to( cachej );</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span>            <span class="comment">//increment to the next position in the list so that we have</span></div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span>            <span class="comment">//a stable position in case we ned to remove one. Also note that insert(incposi,elem) now</span></div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span>            <span class="comment">//inserts directly before the position of elem i</span></div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span>            Iterator incposi = posi;++incposi;</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span>            Iterator incposj = posj;++incposj;</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span>            <span class="comment">//there is one important edge-case: that is the two elements are next in the list</span></div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span>            <span class="comment">//in this case, we can just remove  and insert it before i again</span></div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span>            <span class="keywordflow">if</span>(incposi == posj){</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span>                m_lruList.erase( posj );</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span>                m_lruList.insert(posi,cachej);</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span>            } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(incposj == posi){</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span>                m_lruList.erase( posi );</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span>                m_lruList.insert(posj,cachei);</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>            }</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span>            <span class="keywordflow">else</span>{</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span>                <span class="comment">//erase elements, this does not affect the incremented iterators</span></div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span>                m_lruList.erase( m_lruList.iterator_to( cachei ) );</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span>                m_lruList.erase( m_lruList.iterator_to( cachej ) );</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>                <span class="comment">//insert at correct positions</span></div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span>                m_lruList.insert(incposi,cachej);</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span>                m_lruList.insert(incposj,cachei);</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span>            }</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span>        }</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span>        </div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span>        <span class="comment">//exchange entries</span></div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span>        std::swap(cachei.length,cachej.length);</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span>        std::swap(cachei.data,cachej.data);</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span>    }</div>
</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span>    </div>
<div class="foldopen" id="foldopen00183" data-start="{" data-end="}">
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"><a class="line" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">  183</a></span>    std::size_t <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>()<span class="keyword">const</span>{</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span>        <span class="keywordflow">return</span> m_cacheSize;</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span>    }</div>
</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span>    </div>
<div class="foldopen" id="foldopen00187" data-start="{" data-end="}">
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"><a class="line" href="classshark_1_1_l_r_u_cache.html#a96690c348d7b3e7b45f5efbb093da7e6">  187</a></span>    std::size_t <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#a96690c348d7b3e7b45f5efbb093da7e6">listIndex</a>(std::size_t i)<span class="keyword">const</span>{</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span>        <span class="keyword">typename</span> boost::intrusive::list&lt;CacheEntry&gt;::const_iterator iter = m_lruList.begin();</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span>        std::advance(iter,i);</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span>        <span class="keywordflow">return</span> &amp;(*iter)-&amp;m_cacheEntry[0];</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span>    }</div>
</div>
<div class="foldopen" id="foldopen00192" data-start="{" data-end="}">
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"><a class="line" href="classshark_1_1_l_r_u_cache.html#a54c4f8d27361379cc684a5f3bd0ad2c5">  192</a></span>    std::size_t <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#a54c4f8d27361379cc684a5f3bd0ad2c5">maxSize</a>()<span class="keyword">const</span>{</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span>        <span class="keywordflow">return</span> m_maxSize;</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span>    }</div>
</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span>    <span class="comment"></span></div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span><span class="comment">    ///\brief empty cache</span></div>
<div class="foldopen" id="foldopen00197" data-start="{" data-end="}">
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"><a class="line" href="classshark_1_1_l_r_u_cache.html#afd6ed6c3442f200616f4c7d4cee32144">  197</a></span><span class="comment"></span>    <span class="keywordtype">void</span> <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#afd6ed6c3442f200616f4c7d4cee32144" title="empty cache">clear</a>(){</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span>        ensureFreeMemory(m_maxSize);</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span>    }</div>
</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span><span class="keyword">private</span>:<span class="comment"></span></div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span><span class="comment">    /// \brief Pushes a cached entry to the bginning of the lru-list</span></div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span><span class="comment"></span>    <span class="keywordtype">void</span> cacheRedeclareNewest(CacheEntry&amp; block){</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span>        m_lruList.erase(m_lruList.iterator_to(block));</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span>        m_lruList.push_front(block);</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span>    }</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span>    <span class="comment"></span></div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span><span class="comment">    ///\brief Creates a new row with a certain size &gt; 0.</span></div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span><span class="comment"></span>    <span class="keywordtype">void</span> cacheCreateRow(CacheEntry&amp; block,std::size_t <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>){</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span>        <a class="code hl_define" href="_exception_8h.html#a42a6a50e4d06c00d60fbca5333f40768">SIZE_CHECK</a>(<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a> &gt; 0);</div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span>        ensureFreeMemory(<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>);</div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span>        block.length = <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>;</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span>        block.data = <span class="keyword">new</span> T[<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>];</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span>        m_lruList.push_front(block);</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span>        m_cacheSize += <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>;</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span>    }<span class="comment"></span></div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span><span class="comment">    /// \brief Removes a cached row.</span></div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span><span class="comment"></span>    <span class="keywordtype">void</span> cacheRemoveRow(CacheEntry&amp; block){</div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span>        m_cacheSize -= block.length;</div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span>        m_lruList.erase( m_lruList.iterator_to( block ) );</div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span>        <span class="keyword">delete</span>[] block.data;</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span>        block.length = 0;</div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span>    }<span class="comment"></span></div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span><span class="comment">    /// \brief Resizes a line and copies all old values into it.</span></div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span><span class="comment"></span>    <span class="keywordtype">void</span> <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#a17d6a25d7e772893c10ec0cdd3f8670f" title="Resizes a line while retaining the data stored inside it.">resizeLine</a>(CacheEntry&amp; block,std::size_t <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>){</div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span>        </div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span>        <span class="comment">//salvage block data</span></div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span>        T* newLine  = <span class="keyword">new</span> T[<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>];</div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span>        std::copy(block.data,block.data+std::min(<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>,block.length),newLine);</div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span>        </div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span>        <span class="comment">//remove old data</span></div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span>        cacheRemoveRow(block);</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span>        <span class="comment">//free space for the new block</span></div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span>        ensureFreeMemory(<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>);</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span>        </div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span>        <span class="comment">//add new block</span></div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span>        block.data = newLine;</div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span>        block.length = <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>;</div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span>        m_cacheSize += <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>;</div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span>        m_lruList.push_front(block);</div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span>    }</div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span>    <span class="comment"></span></div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span><span class="comment">    ///\brief Frees enough memory until a given amount of T can be allocated</span></div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span><span class="comment"></span>    <span class="keywordtype">void</span> ensureFreeMemory(std::size_t <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>){</div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span>        <a class="code hl_define" href="_exception_8h.html#a42a6a50e4d06c00d60fbca5333f40768">SIZE_CHECK</a>(<a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a> &lt;= m_maxSize);</div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span>        <span class="keywordflow">while</span>(m_maxSize-m_cacheSize &lt; <a class="code hl_function" href="classshark_1_1_l_r_u_cache.html#ae089a1943125f1be80d521caaefdfd0e">size</a>){</div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span>            cacheRemoveRow(m_lruList.back());<span class="comment">//remove the oldest row</span></div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span>        }</div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span>    }</div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span>    </div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span>    std::vector&lt;CacheEntry&gt; m_cacheEntry; <span class="comment">///&lt; cache entry description</span></div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span>    boost::intrusive::list&lt;CacheEntry&gt; m_lruList;</div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span>    </div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span>    std::size_t m_cacheSize;<span class="comment">//current size of cache in T</span></div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span>    std::size_t m_maxSize;<span class="comment">//maximum size of cache in T</span></div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span> </div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span>    </div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span>};</div>
</div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span>}</div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span><span class="preprocessor">#endif</span></div>
</div><!-- fragment --></div><!-- contents -->
</div>
</body>
</html>
